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Supports: VOB
VIDEO_TS folder. Add multiple .vob parts (e.g. VTS_01_1.VOB, VTS_01_2.VOB) and they will be processed in batch.VOB (Video Object) is the DVD-Video container introduced with the DVD-Video 1.0 specification finalized in September 1996. It strictly follows the MPEG-2 Program Stream defined in ISO/IEC 13818-1 and is split into 1 GiB segments for legacy filesystem compatibility. MXF (Material Exchange Format) is the broadcast-grade container standardized as SMPTE ST 377-1 — initially published in 2004 and most recently revised in 2019 (ST 377-1:2019) — designed by SMPTE specifically for tapeless workflows, professional metadata, and timecode preservation.
Converting VOB to MXF moves DVD content out of a consumer playback container and into a wrapper professional NLEs treat as a first-class citizen. Common reasons:
.vob) lets you carry timecode forward and keep clean reel names per chapter.VTS_01_1.VOB → VTS_01_2.VOB) is awkward to edit around. Converting through MXF lets you wrap each segment cleanly or output one continuous file per title.For the reverse direction — wrapping an MXF back into a DVD-compliant program stream — see MXF to VOB. To send DVD content somewhere consumer-facing instead, VOB to MP4 is usually the better target.
| Property | VOB | MXF |
|---|---|---|
| Full name | Video Object | Material Exchange Format |
| Standard | DVD-Video 1.0 (Sept 1996), built on MPEG-2 Program Stream (ISO/IEC 13818-1) | SMPTE ST 377-1 (2004; latest 2020) |
| Primary use | DVD-Video playback | Broadcast, post-production, archive |
| Video codecs | MPEG-2 Part 2 (H.262), MPEG-1 Part 2 | Codec-agnostic: DV, IMX/D10, MPEG-2, DVCPRO, DNxHD, AVC-Intra, XDCAM HD, H.264, ProRes, JPEG 2000, etc. |
| Audio codecs | AC-3, DTS, LPCM, MPEG-1/2 Audio Layer II | AES3/BWF PCM, AAC, AC-3, Dolby E, MPEG audio (codec-dependent) |
| AAC support | No | Yes (codec-dependent) |
| Max segment size | 1 GiB per .vob file (legacy FS limit) |
No spec-defined cap; multi-GB files are routine |
| Metadata | Minimal; rich data lives in companion .ifo files |
Native: timecode, reel name, descriptive/structural metadata |
| Subtitles | Bitmap subpictures (DVD subs) | Multiple subtitle tracks (codec-dependent) |
| Typical extension | .vob (with .ifo/.bup siblings) |
.mxf |
| Pro NLE support | Limited; usually re-wrapped on ingest | Native in Avid Media Composer, Premiere Pro, DaVinci Resolve, Final Cut |
| Operational patterns | n/a | OP1a (interleaved, single-file delivery), OP-Atom (per-track files, Avid default) |
Quality presets below are the xconvert presets; the codec column is what's typically wrapped inside an MXF for the listed use case. The Pick column maps to the controls in step 2 (Quality Preset, Constant Bitrate, Variable Bitrate, Constant Quality, Constraint Quality).
| Use case | Preset / mode | Typical codec inside MXF | Notes |
|---|---|---|---|
| Archive master from DVD | Highest (or Constant Quality, lowest CRF) | MPEG-2 422P@ML (IMX/D10) or DNxHD | Keeps as much of the source MPEG-2 fidelity as possible |
| Avid OP-Atom edit proxy | Very High | DNxHD / DNxHR | OP-Atom is Avid's default; quality preset trades bitrate for storage |
| Broadcast delivery (SD) | Variable Bitrate, ~30–50 Mbps | IMX 30/50 | Aligns with SMPTE D-10 delivery specs |
| Web hand-off / review copy | Medium | H.264 in MXF | Smallest files; only use where the recipient explicitly accepts H.264-in-MXF |
| Strict cap for FTP/Aspera | Constant Bitrate, target your cap | MPEG-2 or H.264 | Predictable size; expect some quality loss at SD sources |
| Length-trim only | Very High + Trim → Time Range | Same as source family | Drop FBI warnings, menus, and chapter padding before wrapping |
The wrapper matters as much as the codec. VOB is a DVD-Video Program Stream optimized for set-top playback, with navigation packets, mandatory 1 GiB segmentation, and minimal descriptive metadata (most of which lives in a sibling .ifo). MXF is a self-describing professional container with embedded timecode, reel name, and structural metadata. Even if you keep the underlying MPEG-2 essence, MXF is what every broadcast delivery spec, MAM system, and pro NLE expects.
Avid only natively supports OP-Atom and OP-1A MXF flavors, and inside the wrapper it cares which codec is present. If you target a codec Media Composer ingests natively (DNxHD, DNxHR, DV, DVCPRO HD, XDCAM HD, AVC-Intra), the file imports cleanly. If you wrap something exotic, Media Composer may ask you to transcode through AMA on import — which defeats much of the point of converting up front. Aim for a DNx codec for the smoothest Avid path.
.ifo and .bup files next to the VOBs?You can ignore them for the conversion. .ifo (information) and .bup (backup of the .ifo) carry DVD navigation — chapter offsets, menu structure, language tables — which is irrelevant once you're moving to a professional edit container. Just upload the .vob segments. If you need to preserve chapter boundaries, use Trim → Time Range in step 3 to cut individual MXF outputs per chapter.
VTS_01_1.VOB, VTS_01_2.VOB, and so on. Will I lose the join?The 1 GiB split is a filesystem artifact, not a content boundary — DVD players stitch the segments transparently. The converter processes each uploaded VOB independently, so you'll get one MXF per segment with a clean cut at the segment boundary (usually mid-GOP). If you need one continuous MXF, concatenate the source VOBs first (most DVD-ripping tools have a "join" option), then upload the joined file.
xconvert's MXF output is OP1a-style — a single interleaved file containing video and audio — which is the right pick for delivery, archive, and most non-Avid workflows. OP-Atom is Avid's per-track convention (one file for video, one per audio channel) and is generally created by Avid itself on import, so you don't need to pre-produce it. If your Avid project absolutely requires OP-Atom, import the OP1a MXF and let Media Composer transcode to OP-Atom on ingest.
DVD players upscale and apply post-processing (deinterlacing, noise reduction, edge enhancement) during playback that the file itself does not contain. The MXF you get back is the raw essence — typically interlaced 720x480 NTSC or 720x576 PAL. If softness is a problem, deinterlace and upscale in your NLE after wrapping. Don't compare DVD-on-a-TV playback to the file straight off disk; you're seeing the player's processing, not the source.
No. CSS-encrypted commercial DVDs need to be decrypted before ripping VOBs to a hard drive, and that step happens before files reach xconvert. Convert VOBs that you have already ripped from your own source material (home recordings, unencrypted screeners, archive masters), where you own or have licensed the rights.
xconvert applies anonymous-tier upload limits per file — check the upload area for the current cap on your tier. Because a single VOB segment is capped at 1 GiB by the DVD-Video spec itself, individual segments typically fit comfortably. If you joined segments into one large file before upload and exceed the cap, either split back to the original VOBs or sign in for a higher limit.